Back box plate for battery looms



Dec. 24, 1940. A. E. BURGESS BACK BOX PLATE FOR BATTERY LGOMS Filed Oct. 9, 1959 2 Sheets-Sheet l QBNEK BL/R3??? 5 attorney Dec. 24, 1940. A. E. BURGESS BACK BOX PLATE FOR BATTERY LOOMS Filed Oct. 9', 1939 2 Sheets-Sheet 2 HBNER E. Bum/555 Zmventor G ttorneg Patented Dec. 24, 1940 PATENT OFF-ICE 2,225,609 BACK BOX PLATE FOR BATTERY LOOMS Abner E. Burgess, Camden, S. assignor to i Bahan Textile Machinery Company, Gre enville, S. 0., a corporation of South Carolina Application October 9, 1939, Serial No. 298,625

3 Claims. (01. 139-251) This invention relates to textile equipment and more especially to an improved back box plate for battery looms which will serve to guide the lowermost bobbin from the magazine properly into the shuttle box and prevent damage to the parts. The invention is particularly useful when used in connection with high speed looms making 180 to 250 picks per minute.

In practically all instances, the high speed looms have been constructed with considerable clearance between the topof the shuttle box and the lowermost bobbin within the magazine. This veryoften results in a smash-up, especially when a late transfer of the bobbin is being made. Also damage very often occurs when one end of the bobbins is released from the magazine before the other, thereby causing the bobbin to move out of alinement with the shuttle box therebelow.

It is, therefore, an object of this invention to provide a back box plate for the shuttle box of a magazine loom, said plate having a bobbin guide associated with the upper side thereof which serves to direct the lowermost bobbin into the shuttle box upon the transfer and also serves to cut down the normal operating clearance between the lowermost bobbin in the magazine and the upper side of the shuttle box. The present invention, as disclosed in the drawings, com-' prises an upstanding flange which is integral with the back box plate and which is positioned in close proximity to the periphery of the yarn on the bobbin when the lay of the loom is in a beatup position. Upon the transfer of a bobbin the periphery of the yarn moves into contactwith the upstanding flange and thereafter it is properly guided into the shuttle box. Heretofore where no guiding means has been provided, the ends of the bobbins have often become transversely disposed with relation to the shuttle box during the transfer operation, resulting in the bobbin and other portions of the shuttle box becoming damaged.

It is a further object of this invention to provide a box plate having the above mentioned features which is formed from two pieces which are connected together in such a manner that they may be adjusted with relation to the shuttle box, independently of each other. This is a very important feature because it is often necessary to make minute adjustments of the back box plate, especially at the end which is attached to the lay sword. By having the box plate in two pieces, it is possible to loosen the pivoted connection and make adjustments without disturbing the 55 position of the other end of the plate.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which- Figure 1 is a' sectional plan view of the lay of'a loom showing my improved back box plate and bobbin guide associated therewith;

Figure 2 is an isometric view of one end of the back box plate, which is adapted to be secured to the inner extremity of the shuttle box;

Figure 3 is an isometric view of the other portion of the back box plate, which is adapted to be secured to the outerextremity of the shuttlebox; f

Figure 4 is a vertical sectional view through the lay of a loom showing the manner in which the improved back box plate cooperates with the lowermost bobbin within the magazine of a battery loom;

shown) whichis similar to plate l2. The plates rotate in unison to successively position the bobbins so that the lowermost one may be transferred from the battery into a shuttle l5 at the proper time. The shuttle when boxed is positioned between box front It and back binder ll. The box front is secured to the top of a lay plate l8 by any suitable means such as bolts I9; whereas the back binder I1 is pivotally secured as at 20 tothe top side of this same lay plate. The lay plate I8 is secured to the top of lay 2i and this lay is supported at each end by suitable lay swords 22.v

It is a well known fact'that the lay 2| oscillates back and forth beneath the magazine and when the filling upon the bobbin in the shuttle [5 becomes exhausted, a suitable conventional mechanism is actuated to-cause the lowermost bobbin in the magazine to be transferred into the-shuttle, and at the same time to cause the empty bobbin to be removedtherefrom. This transfer'is effected by means of a hunter 25, the upper end of which is adapted to contact the free end of dog 26. This dog is shown in a noncontacting position upon the beat-up stroke of the lay 2| in Figure 4, but upon the exhaustion of the filling on the bobbin within the shuttle this dog is rotated in a counter-clockwise manner '60 upper side of the member '40 has a vertically disposed bobbin guide and support 44. This memabout pivot point 21 so that its free end will be disposed in the path of thebunter 25. When such is the case, the bunter 26, together with its supporting L-shaped transfer arm 28 will be moved to the left thereby causing the horizontal portion of L-shaped arm 28 to move downwardly into engagement with the ends of the lowermost bobbin f-iand' effect a transfer. 1

As heretofore stated, this transfer is a very exacting operation and when an improper transfer is made upon high speed looms very often the lowermost bobbin, during the transfer, becomes transversely disposed relative to ,the shuttle box. resulting in damage to boththe bobbin and the The present invention, thereback box plate. fore, serves to eliminate this improper transfer which is partially due to the lack of a supporting means for the bobbin while it passes through the space or clearance between the lowermost bobbin and the top of the shuttle box.

Eliminating the excess clearance within itself alone isnot'suificient-to remedy the improper transfer. It'isalso necessary to provide a guiding means which will contact a substantial portion of the'periphery of the lowermost bobbin during the transfer and serve to guide the bobbin in the proper position to the shuttle box. Even though the bobbin should be'improperly transferred, and the longitudinalaxis of the same becomes slightly out of alinement with the longitudinal center line of theshuttle, this improved guiding meanswill' serve to re-aline the bobbin as it moves downwardly. v

The bobbin guide and support which is used to prevent an improper transferf comprises a member 35 which hasan interiorly threaded hole 38 inthe upstanding leg'th'ereof. This hole has threaclably secured therein the end of astud bolt 31 said stud bolt also penetrating the upperzportion of lay sword 22." When the member 35 is installed as shown "inFigure '1' one side of its vertical leg is adapted to rest firmly against the face of lay sword2 2'. The horizontally disposed portion of member 35 has an'interiorly threaded hole- 38 therein. This hole is adapted to coincide with a hole 39 in member 40"when the parts are in assembled position. Penetrating both the holes 38"and 39 isa screw 4| which serves to hold the parts together; It will be noted that the longitudinal axis of the screw 4 iis vertically dis posed thereby allowing a limited horizontal adjustment of the'member's-35 and 40 relative to each other. When the members 35 and 46 are assembled upon the shuttle box a-suitable screw or bolt 20 penetrates a hole 43 in 'the'extreme right hand end of member and secures this end to the lay. j

By observing Figurel'it will be noted that the ber is so positioned that upon a transfer of the lowermost bobbin 'I4'fromthe magazine to the shuttle; that theperiphery' ofthe yarnon the bobbin will, at times, engage this member, which member will serve to keep the bobbin in -alinement with the shuttle 'boxpFigure 4 shows a cross sectional view of this projection, and it is here seen that the upper edge ofthe'upwardly extending projection 44 substantially cuts down the existing clearance between the top of the box plate and the lowermost bobbin thereby decreasbox plate.

ing the likelihood of the bobbin becoming transversely disposed onthe lay during transfer.

Especial attention is called to the screw 4|. It frequently happens that it is necessary to remove the plate 35 and grind the same so that it will properly fit against the face of the lay sword 22. By providing the pivoted connection 4| the member 35 can be rotated slightly in a horizontal plane away from the face of the lay'sword so that it will be possible to make this minute adjustment and do the necessary grinding without disturbing the part 40.

Figure 5 shows a slightly modified form of the invention in which a guiding means is secured to the upper side of the conventional one-piece back In this form of the invention, a conventional back box plate 45 is provided which has holes 46 and 41 therein, said holes being adapted to be penetrated by suitable bolts such as 31 and 20 respectively to secure the same rigidly to the lay. At a point intermediate the ends of this box plate and upon the horizontal flange thereof, an upwardly extending projection 49 is provided. When this box plate is installed upon the shuttle box the projection 49 will be disposed alongside the bobbin at a point intermediate the ends so that it can serve as a guide and support upon the transfer of a bobbin from the magazine to the shuttle box. The chief difference between this form and that of the preceding form is the lack of independent adjustment of the ends of back box plate relative to theshuttle box.

In the drawings and specification there has been set forth a preferred embodiment of the invention and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being set forth in the appended claims.

I claim:

, 1. A two-piece back box plate for battery looms, one of the pieces of said plate having a vertical flange and a horizontal flange, and the other piece having a horizontal flange, means for pivotally securing the horizontal fiangesof said pieces tog-ether.

2. In a battery loom having a lay sword and a lay supported thereby, a shuttle box on the extremity of'the lay, a two-piece backbox plate for said box one of the pieces having a vertical and horizontal flange, and the other, having a horizontal flange, means for securing'one end of said other piece to said lay sword, means for securing one end of the first-named piece to the outer extremity of the lay, the horizontal flanges of said pieces being secured toeaeh other at their proximate ends bya vertically disposed bolt, whereby independent'adjustment of each end of the plate can be made without disturbing the end not being adjusted. f

3. A back box plate for battery looms comprising two pieces, means for securing the proximate ends together, means for securing the inner end of-one piece to the lay sword, means for securing the outer end of the other piece. to the outer end of the lay, one of said pieces having an inwardly projecting elongated portion extending along the upper surface of the pieceof which it is a part, to lessen the clearance between the lay and the bobbin about to be transferred from the battery to the shuttle box of the loom.

A; BURGESS. 

